lib/CodeGen/RegAllocGreedy.cpp

2098   ArrayRef<SlotIndex> Uses = SA->getUseSlots();
2099   if (Uses.size() <= 1)
2102   LLVM_DEBUG(dbgs() << "Split around " << Uses.size()
2112   for (unsigned i = 0; i != Uses.size(); ++i) {
2113     if (const MachineInstr *MI = Indexes->getInstructionFromIndex(Uses[i]))
2118         LLVM_DEBUG(dbgs() << "    skip:\t" << Uses[i] << '\t' << *MI);
2122     SlotIndex SegStart = SE->enterIntvBefore(Uses[i]);
2123     SlotIndex SegStop  = SE->leaveIntvAfter(Uses[i]);
2155   ArrayRef<SlotIndex> Uses = SA->getUseSlots();
2156   const unsigned NumGaps = Uses.size()-1;
2183       while (Uses[Gap+1].getBoundaryIndex() < IntI.start())
2193         if (Uses[Gap+1].getBaseIndex() >= IntI.stop())
2209       while (Uses[Gap+1].getBoundaryIndex() < I->start)
2217         if (Uses[Gap+1].getBaseIndex() >= I->end)
2245   ArrayRef<SlotIndex> Uses = SA->getUseSlots();
2246   if (Uses.size() <= 2)
2248   const unsigned NumGaps = Uses.size()-1;
2252     for (unsigned i = 0, e = Uses.size(); i != e; ++i)
2253       dbgs() << ' ' << Uses[i];
2266         llvm::lower_bound(RMS, Uses.front().getRegSlot()) - RMS.begin();
2269       // Look for Uses[i] <= RMS <= Uses[i+1].
2270       assert(!SlotIndex::isEarlierInstr(RMS[ri], Uses[i]));
2271       if (SlotIndex::isEarlierInstr(Uses[i+1], RMS[ri]))
2275       if (SlotIndex::isSameInstr(Uses[i+1], RMS[ri]) && i+1 == NumGaps)
2277       LLVM_DEBUG(dbgs() << ' ' << RMS[ri] << ':' << Uses[i] << '-'
2278                         << Uses[i + 1]);
2282       while (ri != re && SlotIndex::isEarlierInstr(RMS[ri], Uses[i+1]))
2332     // We will split before Uses[SplitBefore] and after Uses[SplitAfter].
2344       LLVM_DEBUG(dbgs() << printReg(PhysReg, TRI) << ' ' << Uses[SplitBefore]
2345                         << '-' << Uses[SplitAfter] << " i=" << MaxGap);
2369             Uses[SplitBefore].distance(Uses[SplitAfter]) +
2417   LLVM_DEBUG(dbgs() << "Best local split range: " << Uses[BestBefore] << '-'
2418                     << Uses[BestAfter] << ", " << BestDiff << ", "
2425   SlotIndex SegStart = SE->enterIntvBefore(Uses[BestBefore]);
2426   SlotIndex SegStop  = SE->leaveIntvAfter(Uses[BestAfter]);